Search a number
-
+
431284874489 = 7217928275413
BaseRepresentation
bin1100100011010101001…
…01001110110011111001
31112020012222120122210222
412101222211032303321
524031232411440424
6530043551345425
743105432642430
oct6215245166371
91466188518728
10431284874489
111569a8082677
126b704522275
1331892c738b1
1416c35112117
15b343225e5e
hex646a94ecf9

431284874489 has 8 divisors (see below), whose sum is σ = 493123220160. Its totient is φ = 369503084016.

The previous prime is 431284874479. The next prime is 431284874507. The reversal of 431284874489 is 984478482134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431284874489 - 220 = 431283825913 is a prime.

It is a super-2 number, since 2×4312848744892 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431284874479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14122454 + ... + 14152959.

It is an arithmetic number, because the mean of its divisors is an integer number (61640402520).

Almost surely, 2431284874489 is an apocalyptic number.

It is an amenable number.

431284874489 is a deficient number, since it is larger than the sum of its proper divisors (61838345671).

431284874489 is a wasteful number, since it uses less digits than its factorization.

431284874489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28277599.

The product of its digits is 49545216, while the sum is 62.

The spelling of 431284874489 in words is "four hundred thirty-one billion, two hundred eighty-four million, eight hundred seventy-four thousand, four hundred eighty-nine".

Divisors: 1 7 2179 15253 28275413 197927891 61612124927 431284874489